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java.lang.NullPointerException: 	at com.handyedit.codeexplorer.util.PsiUtils.asString(PsiUtils.java:125)	at com.handyedit.codeexplorer.util.PsiUtils.asString(PsiUtils.java:115)	at com.handyedit.codeexplorer.model.MethodNode.getName(MethodNode.java:32)	at com.handyedit.codeexplorer.ui.graph.MethodRenderer.getNodeName(MethodRenderer.java:35)	at com.handyedit.codeexplorer.ui.graph.MethodRenderer.getNodeName(MethodRenderer.java:18)	at com.intellij.openapi.graph.builder.renderer.BasicGraphNodeRenderer.getLabelPanel(BasicGraphNodeRenderer.java:65)	at com.intellij.openapi.graph.builder.renderer.BasicGraphNodeRenderer.tuneNode(BasicGraphNodeRenderer.java:53)	at com.intellij.openapi.graph.builder.renderer.AbstractColoredNodeCellRenderer.getRendererComponent(AbstractColoredNodeCellRenderer.java:33)	at com.intellij.openapi.graph.builder.renderer.BasicNodeCellRenderer.getNodeCellRendererComponent(BasicNodeCellRenderer.java:32)	at com.intellij.openapi.graph.impl.GraphBase$NodeCellRendererProxy.getNodeCellRendererComponent(GraphBase.java:4)	at a.j.l.a(Unknown Source)	at a.j.l.a(Unknown Source)	at a.j.k.a(Unknown Source)	at a.j.kc.d(Unknown Source)	at a.j.y.a(Unknown Source)	at a.j.y$c_.a(Unknown Source)	at a.j.a.i.b(Unknown Source)	at a.j.a.i.a(Unknown Source)	at a.j.y.a(Unknown Source)	at a.j.fe.f(Unknown Source)	at a.j.fe.paintComponent(Unknown Source)	at javax.swing.JComponent.paint(JComponent.java:1027)	at javax.swing.JComponent.paintChildren(JComponent.java:864)	at javax.swing.JComponent.paint(JComponent.java:1036)	at javax.swing.JComponent.paintChildren(JComponent.java:864)	at javax.swing.JComponent.paint(JComponent.java:1036)	at javax.swing.JComponent.paintChildren(JComponent.java:864)	at javax.swing.JComponent.paint(JComponent.java:1036)	at javax.swing.JComponent.paintChildren(JComponent.java:864)	at javax.swing.JComponent.paint(JComponent.java:1036)	at javax.swing.JComponent.paintChildren(JComponent.java:864)	at javax.swing.JComponent.paint(JComponent.java:1036)	at javax.swing.JComponent.paintChildren(JComponent.java:864)	at javax.swing.JComponent.paint(JComponent.java:1036)	at javax.swing.JComponent.paintChildren(JComponent.java:864)	at javax.swing.JComponent.paint(JComponent.java:1036)	at javax.swing.JComponent.paintChildren(JComponent.java:864)	at javax.swing.JComponent.paint(JComponent.java:1036)	at javax.swing.JComponent.paintChildren(JComponent.java:864)	at javax.swing.JComponent.paint(JComponent.java:1036)	at javax.swing.JComponent.paintChildren(JComponent.java:864)	at javax.swing.JComponent.paint(JComponent.java:1036)	at javax.swing.JComponent.paintChildren(JComponent.java:864)	at javax.swing.JComponent.paint(JComponent.java:1036)	at javax.swing.JComponent.paintChildren(JComponent.java:864)	at javax.swing.JComponent.paint(JComponent.java:1036)	at javax.swing.JLayeredPane.paint(JLayeredPane.java:564)	at javax.swing.JComponent.paintChildren(JComponent.java:864)	at javax.swing.JComponent.paint(JComponent.java:1036)	at javax.swing.JComponent.paintChildren(JComponent.java:864)	at javax.swing.JComponent.paint(JComponent.java:1036)	at javax.swing.JComponent.paintChildren(JComponent.java:864)	at javax.swing.JComponent.paint(JComponent.java:1036)	at javax.swing.JLayeredPane.paint(JLayeredPane.java:564)	at javax.swing.JComponent.paintChildren(JComponent.java:864)	at javax.swing.JComponent.paintToOffscreen(JComponent.java:5129)	at javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(RepaintManager.java:1472)	at javax.swing.RepaintManager$PaintManager.paint(RepaintManager.java:1403)	at javax.swing.RepaintManager.paint(RepaintManager.java:1217)	at javax.swing.JComponent.paint(JComponent.java:1013)	at java.awt.GraphicsCallback$PaintCallback.run(GraphicsCallback.java:21)	at sun.awt.SunGraphicsCallback.runOneComponent(SunGraphicsCallback.java:60)	at sun.awt.SunGraphicsCallback.runComponents(SunGraphicsCallback.java:97)	at java.awt.Container.paint(Container.java:1780)	at com.intellij.openapi.wm.impl.IdeFrameImpl.paint(IdeFrameImpl.java:71)	at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:814)	at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:714)	at javax.swing.RepaintManager.seqPaintDirtyRegions(RepaintManager.java:694)	at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(SystemEventQueueUtilities.java:128)	at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)	at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)	at com.intellij.ide.IdeEventQueue.c(IdeEventQueue.java:35)	at com.intellij.ide.IdeEventQueue.b(IdeEventQueue.java:99)	at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:217)	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)	at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)